DEA-C01 Data Ingestion and Transformation Practice Question
Exhibit
Refer to the exhibit.
IAM Policy:
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:GetObject",
"s3:PutObject"
],
"Resource": "arn:aws:s3:::data-bucket/*"
},
{
"Effect": "Allow",
"Action": [
"kinesis:DescribeStream",
"kinesis:GetRecords",
"kinesis:GetShardIterator"
],
"Resource": "arn:aws:kinesis:us-east-1:123456789012:stream/input-stream"
}
]
}Refer to the exhibit. A data engineer created this IAM policy for a Lambda function that reads from a Kinesis stream and writes to an S3 bucket. The Lambda function fails with an 'AccessDenied' error when trying to write to S3. What is the missing permission?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
s3:PutObjectAcl on the bucket
The IAM policy includes s3:PutObject, which is sufficient for writing objects to S3. The AccessDenied error indicates the bucket policy or the resource ARN in the policy is misconfigured. Among the given options, s3:PutObjectAcl might be required if the bucket is configured to require ACLs on write operations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
s3:ListBucket on the bucket
Why it's wrong here
s3:ListBucket is not required for PutObject operations. It allows listing objects, not writing.
- ✗
s3:GetObject on the bucket
Why it's wrong here
s3:GetObject is for reading objects, not writing.
- ✓
s3:PutObjectAcl on the bucket
Why this is correct
If the bucket policy requires object ACLs, s3:PutObjectAcl may be necessary alongside PutObject. This is the most plausible missing permission from the given options.
- ✗
s3:DeleteObject on the bucket
Why it's wrong here
s3:DeleteObject is for deleting objects, not writing.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DEA-C01 exam.